Answer:
$2.80
Step-by-step explanation:
If the the total amount must be rounded to the nearest 5 cent, the money paid will either be rounded to the highest five cents or the lowest five cents. Anything greater than $0.05 will be rounded to $0.1 and anything less than $0.05 will be rounded to $0.00. The bill is $2.78. Therefore $0.08 is greater than $0.05 and the final bill is $2.80.